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Side-by-side comparison of 2 motherboards
SpecificationAsus PRIME B550M-K ARGBASUS Prime B550M-K AMD B550
Price (new) (differs)£82.15as of 20 Sep, 06:20£85.47as of 20 Sep, 06:20
Amazon Warehouse offernot statednot stated
RRP (differs)£99.99£134.99
Price badgenot statednot stated
First available on Amazon (differs)Jan 2023 (3 yr 8 mo old)Jan 2022 (4 yr 8 mo old)
BrandASUSASUS
SocketAM4AM4
ChipsetB550B550
Form factorMicro-ATXMicro-ATX
Memory typeDDR4DDR4
RAM slots (differs)2not stated
Maximum RAMnot statednot stated
Fastest RAM speed stated (differs)not stated4,400 MT/s
M.2 slots22
Newest PCIe generation statedPCIe 4.0PCIe 4.0
PCIe 5.0 graphics slotnot statednot stated
PCIe 5.0 M.2 slotnot statednot stated
WiFi (differs)None named in the listing titleWiFi 6
Bluetoothnot statednot stated
Wired LAN1GbE1GbE
USB4 / Thunderboltnot statednot stated
Fastest USB-C port (differs)5 Gbpsnot stated
SATA portsnot statednot stated
Power phases (as stated by the maker)not statednot stated
BIOS flashbacknot statednot stated
Debug LED / POST codenot statednot stated
ARGB headers (differs)Yesnot stated
Video outputs (differs)HDMI, DisplayPortHDMI
Audio codecnot statednot stated
Colournot statednot stated
Amazon sales rank (differs)#84,725#1,413
BuyCheck price on AmazonCheck price on Amazon

Highlighted rows differ between these boards. “Not stated” means the Amazon listing does not mention it: the board may still have it, so check the maker’s specification. Power phases are printed as stated by the maker and are not comparable between brands. Prices are the new price on Amazon.co.uk at the time shown; the price on Amazon when you buy is the one that applies.

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